The positions of marks vary as the restricted area to the west of the reservoir increases between 1 March and 30 June to protect wildlife habitats. When the restriction changes the last line of buoys are removed, so the general rule is DON’T SAIL PAST THE LAST LINE OF BUOYS
UNRESTRICTED
1 January to 28 February and 1 July – 31 December
RESTRICTED (Spring)
1 March to 30 June
